A Demographer Wants to Measure Life Expectancy in Countries 1

question 32

Multiple Choice

A demographer wants to measure life expectancy in countries 1 and 2. Let µ₁ and µ₂ denote the mean life expectancy in countries 1 and 2, respectively. Specify the hypothesis to determine if life expectancy in country 1 is more than 10 years lower than in country 2.

• A) H₀: µ₁ - µ₂ ≤ 10, H_A: µ₁ - µ₂ > 10
• B) H₀: µ₁ - µ₂ ≥ 10, H_A: µ₁ - µ₂ < 10
• C) H₀: µ₁ - µ₂ ≤ -10, H_A: µ₁ - µ₂ > −10
• D) H₀: µ₁ - µ₂ ≥ -10, H_A: µ₁ - µ₂ < −10

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Definitions:

Alteration

The act of making changes to a document, garment, or object that results in a modification of its original state.

Negotiable Instrument

A written agreement that commits to paying a precise amount of money, on demand or at a fixed time, with the person who will make the payment clearly identified on it.

Original Tenor

The initial agreed-upon duration or terms of a financial instrument or loan.

Conditional Indorsement

A stipulation placed on a negotiable instrument (like a check) that modifies the way the instrument is to be redeemed.